Overview
GXR A12 Leica Mount
GXR MOUNT
A12 is compatible with the M mount, which boasts a long, distinguished history
and an extensive range of lenses. Besides being able to mount Leica
M lenses, lenses with many more types of mounts can also be accommodated if a
mount conversion adapter is used. Rediscover the appeal of many
"gems" of the lens field as well as other "old friends"
from your own lens collection. Focusing is done manually. A checking device is
included for use in confirming whether or not your lenses can be physically
mounted.
The large
23.6 × 15.7 mm CMOS sensor offers beautiful bokeh as well as rich tone
gradations. Taking into account the use of lenses such as the symmetrical
wide-angle lenses of the film era, this sensor optimizes on-chip micro-lens
performance and suppresses peripheral light falloff and colour balance changes.
There are approximately 12.30 million effective pixels. Based on the design
concept of making the best use of the special characteristics of film-era lens,
GR MOUNT A12 makes it possible to draw out all of the sharp imaging power of
both classic lenses and the CMOS sensor.
Correction/compensation
can be finely tuned to the characteristics of each lens. Not only can you
correct for the optical characteristics and quirks of the lens, you can also go
the other way and emphasize those characteristics to enjoy creating a
distinctive feel not found in the images of today's lenses.
Colour shading correction
Colour shading correction at the corners can be done in a -4
to +4 range for both R and B.
Peripheral illumination correction
Illumination at the periphery of the image can be corrected
in a -3 to +3 range. In addition to correcting for inadequate illumination, you
can do the reverse and darken the edges to create a tunnel effect that focuses
the viewer's gaze.
Distortion correction
Correct for the distortion that tends to occur in the lens
periphery. You can select barrel and pincushion distortion and specify
"strong," "medium," or "weak" for each.
A focus assist function is included. Outlines and contrast
are strengthened to assist the photographer in easy, high-precision manual
focusing. It is also possible to magnify the screen image when shooting. As
with existing camera units, you can magnify the central part of the image. In
addition, you can now display the magnified central area across the entire
screen, making it much easier to focus accurately. The image quality for 4x and
8x magnification has been further enhanced, and the area to be magnified can be
moved with the directional pad.
The focal plane shutter has a maximum speed of 1/4000
seconds. In manual exposure mode, bulb and time shooting are possible (up to
180 sec.). With "bulb," the exposure continues while the shutter
release button is pressed, and with "time," the shutter release
button is pressed to start and end the exposure. In addition, if you select
"electronic shutter" in scene mode, you can use a fast 1/8000-second
shutter speed. It is effective for scenes where you want to suppress sound and
vibration.
My Settings enable you to instantaneously switch a wide
variety of shooting functions. From GXR MOUNT A12, it is possible to save six
My Settings in the body's My Settings Box and six in the SD/SDHC memory card.
You can enjoy flexible and dynamic shooting by switching My Settings for
different lenses as well as different scenes. In addition, if you enter
information such as lens name, focal length, and f-aperture in the lens
information entry area of My Settings editing, it is possible to record that
lens information in the image Exif information.
Specifications
Effective pixels
|
Approximately 12.30 million
|
Image sensor
|
23.6 mm × 15.7 mm CMOS sensor (total pixels: approx. 12.90
million pixels)
|
Zoom
|
Digital zoom: 4.0x (3.6x for movies)
Auto resize zoom: Approx. 5.9x (VGA)
|
Focus Mode
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Manual focus
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Shutter speed
|
Photographs
|
1/4000 - 180 s, bulb, time (upper and lower limits vary
according to shooting and flash modes)
Maximum flash sync shutter speed: 1/180 s
|
Movies
|
1/2000 - 1/30 s
|
Exposure control
|
Metering
|
TTL metering in multi (256-segment), center-weighted, and
spot metering (TTL metering with auto exposure lock)
|
Mode
|
Aperture
priority AE, manual exposure
|
Exposure compensation
|
Manual (+4.0 to -4.0 EV in increments of 1/3 EV or 1/2
EV), auto bracketing (-2 EV to +2 EV in increments of 1/3 EV or 1/2 EV)
|
Exposure range
(auto mode, center-weighted metering)
|
Using standard lens (F2.5): 1.2 EV to 13.2 EV
(Exposure range for auto ISO calculated using values
for ISO 100.)
|
ISO sensitivity
(standard output sensitivity)
|
Auto, Auto-Hi, ISO-Lo, ISO 200, ISO 250, ISO 320, ISO 400,
ISO 500, ISO 640, ISO 800, ISO 1000, ISO 1250, ISO 1600, ISO 2000, ISO 2500,
ISO 3200
|
White balance
|
Auto / Multi-P AUTO / Outdoors / Cloudy / Incandescent
Lamp 1 / Incandescent Lamp 2 / Fluorescent Lamp / Manual Settings / Detail;
white balance bracketing
|
Flash
|
Method
|
TTL, manual, external auto (external flash GF-1 function)
|
Flash mode
|
Auto, Anti
Red-eye, Flash On, Flash Synchro, Manual, Flash Off
|
Guide
number
|
9.6 (ISO
200 equivalent), 6.8 (ISO 100 equivalent)
|
Illumination
angle
|
24 mm (35
mm film camera equivalent)
|
Firing
timing
|
1st/2nd
curtain sync
|
Other
|
External flash GF-1 compatibility
|
Shooting mode
|
Auto / Program Shift / Aperture Priority / Shutter
Priority / Manual / Scene (Movie, Portrait, Sports, Landscape, Nightscape,
Skew Correction, Miniaturize, High Contrast B&W, Soft Focus, Cross
Process, Toy Camera, Electronic Shutter) / My Settings
|
Continuous mode
|
Number of pictures shot
in Continuous (Picture Size: RAW)
|
Noise Reduction on weak or off: 4 pictures
Noise Reduction on strong: 3 pictures
Noise Reduction on MAX: 3 pictures
|
Number of pictures shot
in M-Cont Plus (1 set)
|
HI (1280 × 856): 30 pictures (24 frames/sec.)
LO (4288 × 2848): 15 pictures (2.2 frames/sec.)
|
Compression ratio*1
|
FINE, NORMAL, RAW (DNG)*2
|
Image size (pixels)
|
Photographs
|
16:9
|
4288×2416, 3456×1944
|
4:3
|
3776×2832, 3072×2304, 2592×1944, 2048×1536, 1280×960,
640×480
|
3:2
|
4288×2848, 3456×2304
|
1:1
|
2848×2848, 2304×2304
|
Movies
|
1280×720,
640×480, 320×240
|
File size
(approx.)
|
RAW
|
16:9
|
NORMAL: 17,800 KB/frame, FINE: 19,515 KB/frame, VGA:
15,587 KB/frame
|
4:3
|
NORMAL:
18,387 KB/frame, FINE: 20,157 KB/frame, VGA: 16,124 KB/frame
|
3:2
|
NORMAL:
20,946 KB/frame, FINE: 22,967 KB/frame, VGA: 18,337 KB/frame
|
1:1
|
NORMAL:
13,991 KB/frame, FINE: 15,333 KB/frame, VGA: 12,273 KB/frame
|
L
|
16:9
|
NORMAL:
2,222 KB/frame, FINE: 3,816 KB/frame
|
4:3
|
NORMAL:
2,315 KB/frame, FINE: 3,960 KB/frame
|
3:2
|
NORMAL:
2,615 KB/frame, FINE: 4,493 KB/frame
|
1:1
|
NORMAL:
1,761 KB/frame, FINE: 3,009 KB/frame
|
M
|
16:9
|
NORMAL:
1,475 KB/frame, FINE: 2,509 KB/frame
|
4:3
|
NORMAL:
1,574 KB/frame, FINE: 2,662 KB/frame
|
3:2
|
NORMAL:
1,744 KB/frame, FINE: 2,968 KB/frame
|
1:1
|
NORMAL:
1,186 KB/frame, FINE: 2,003 KB/frame
|
5M
|
4:3
|
FINE:
2,287 KB/frame
|
3M
|
4:3
|
FINE:
1,474 KB/frame
|
1M
|
4:3
|
FINE: 812
KB/frame
|
VGA
|
4:3
|
FINE: 197
KB/frame
|
Battery life
|
Based on
CIPA standard DB-90: approx. 330 shots*3
|
Dimensions (W × H × D)
|
Lens mount unit only: 79.1 mm × 60.9 mm × 40.5 mm
(according to CIPA guidelines)
When mounted on the GXR body: 120.0 mm × 70.2 mm × 45.7
mm
(according to CIPA guidelines)
Flange back: 27.8 mm
|
Weight (approx.)
|
Lens mount unit only: Approx. 170 g
When mounted on camera body: Approx. 370 g (battery and
SD memory card included)
|
Operating temperature
|
0 °C to 40 °C
|
Operating humidity
|
90% or less
|
Storage temperature
|
–20 °C to 60 °C
|
1 The compression ratios which can be
set vary depending on the image size.
2 A JPEG file is also recorded (the
JPEG file may be a FINE- or NORMAL-quality file with the same dimensions as the
RAW file or a VGA file 640 × 480 pixels in size). RAW files use the standard
DNG format promoted by Adobe Systems Incorporated.
3 For reference only; actual number of
shots varies greatly according to how camera is used. We recommend that you
carry spare batteries when in use for extended periods.
|